the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles,…
Its definition shares important concepts with this word: vascular, pigmented, membrane, projecting, vitreous.
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Pecten
A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; -- also called marsupium.
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